For teens who dream of being the next Spike Lee or Sofia Coppola, the Urban Visionaries Festival is a good place to start.

Now in its seventh year at the Museum of Television & Radio, the festival – the only one in New York produced, curated and presented by teens – is three days of 30 short films about everything from race to hip-hop. (It runs this week from Wednesday to Friday from 10 a.m. to 6 p.m.)

“Being a teenager, you feel like you don’t get your voice heard,” says Brooklyn’s Jasmin Cordero, 17, a “Lord of the Rings” fan who helped organize the festival.

“But here … it’s people your age that are working on everything and putting it out there and it’s a learning experience on everybody’s part.”

Ditto, says 19-year-old Jon Roman of Brooklyn, who directed the 15-minute documentary, “Finding My Heart in Vieques,” about the test-bombing in Puerto Rico.

“It gives us teenagers more of a voice, more power – it helps us to be more passionate and to continue to make more films instead of being put down as regular teenagers who joke around all the time.”

In fact, most of the festival’s films this year deal with serious topics, like racial stereotypes and domestic violence.

“Not everything is about MTV and “TRL” and what Britney Spears is doing this week,” says Cheyenne McFaddin, 17, a festival organizer from the Bronx.

“There’s other things right there in their neighborhood that’s worth 3 to 6 minutes on film. It’s not about what’s hot and what’s not. That’s why we’re using heavier topics – you need to get that point across for other youths to think about it.”

But the festival isn’t all serious: Thursday’s “Creative Nation” program features shorts like Augie Dannehl’s “Onion Rings,” a 10-minute flick about a man and his onion rings, and Thomas Schuster’s “Secret Agent,” a short about a stick figure with a secret life.

There there’s the Video Slam (Thursday at 4 p.m.), in which teen filmmakers can bring in their short films (7 minutes and under) for screening in front of an audience. The three films that get the biggest cheers win.

Tickets are free, but you need to reserve them in advance: (212) 621-6724. MTR, 25 W. 52nd St., between Fifth and Sixth avenues. For info, visit urbanvisionaries.org.